3-phase short-circuit current (Isc) at any point within a LV installation
... Busbars: The resistance of busbars is generally negligible, so that the impedance is practically all reactive, and amounts to approximately 0.15 mΩ/metre(1) increases the reactance by about 10% only). ...
... Busbars: The resistance of busbars is generally negligible, so that the impedance is practically all reactive, and amounts to approximately 0.15 mΩ/metre(1) increases the reactance by about 10% only). ...
PHYSICS (Theory)
... Two convex lenses of same focal length but of aperture A1 and A2 (A2 < A1), are used as the objective lenses in two astronomical telescopes having identical eyepieces. What is the ratio of their resolving power ? Which telescope will you prefer and why ? Give reason. ...
... Two convex lenses of same focal length but of aperture A1 and A2 (A2 < A1), are used as the objective lenses in two astronomical telescopes having identical eyepieces. What is the ratio of their resolving power ? Which telescope will you prefer and why ? Give reason. ...
DAC8580 数据资料 dataSheet 下载
... The DAC8580 is a 16-bit, high-speed, low-noise, voltage-output DAC designed for waveform generation applications. It operates from dual ±5-V power supplies and requires only a single external reference. The DAC8580 is capable of generating output signal frequencies up to 1 MHz. The DAC8580 significa ...
... The DAC8580 is a 16-bit, high-speed, low-noise, voltage-output DAC designed for waveform generation applications. It operates from dual ±5-V power supplies and requires only a single external reference. The DAC8580 is capable of generating output signal frequencies up to 1 MHz. The DAC8580 significa ...
to view Dynagen GSC 300 Manual
... Overcrank Annunciation Output closes to +12/24VDC on Overcrank Failure. 300mA max. Overspeed Annunciation Output closes to +12/24VDC on Overspeed Failure. 300mA max. High Temp Output closes to +12/24VDC upon High Temp Failure. 300mA max. Low Oil Output closes to +12/24VDC upon Low Oil Failure. 300mA ...
... Overcrank Annunciation Output closes to +12/24VDC on Overcrank Failure. 300mA max. Overspeed Annunciation Output closes to +12/24VDC on Overspeed Failure. 300mA max. High Temp Output closes to +12/24VDC upon High Temp Failure. 300mA max. Low Oil Output closes to +12/24VDC upon Low Oil Failure. 300mA ...
PDF
... input main supply. The output power of fly-back type SMPS Circuits may vary from few watts to less than 100 watts. The overall circuit topology of this converter is considerably simpler than other SMPS circuits. Input to the circuit is generally unregulated dc voltage obtained by rectifying the util ...
... input main supply. The output power of fly-back type SMPS Circuits may vary from few watts to less than 100 watts. The overall circuit topology of this converter is considerably simpler than other SMPS circuits. Input to the circuit is generally unregulated dc voltage obtained by rectifying the util ...
DC Syllabus 2015 - Spearfish School District
... Describe a magnetic field, and the magnetic lines of force. Describe an electro-magnet and explain the relationship between the electron flow and the magnetic field around the conductor using the left-hand rule. Define magnetomotive force and the saturation point in relation to electromagnets. Descr ...
... Describe a magnetic field, and the magnetic lines of force. Describe an electro-magnet and explain the relationship between the electron flow and the magnetic field around the conductor using the left-hand rule. Define magnetomotive force and the saturation point in relation to electromagnets. Descr ...
FAN6921MR Integrated Critical Mode PFC and Quasi-Resonant Current Mode PWM Controller
... For PFC, FAN6921MR uses a controlled on-time technique to provide a regulated DC output voltage and to perform natural power factor correction. With an innovative THD optimizer, FAN6921MR can reduce input current distortion at zero-crossing duration to improve THD performance. For PWM, FAN6921MR pro ...
... For PFC, FAN6921MR uses a controlled on-time technique to provide a regulated DC output voltage and to perform natural power factor correction. With an innovative THD optimizer, FAN6921MR can reduce input current distortion at zero-crossing duration to improve THD performance. For PWM, FAN6921MR pro ...
Indonesia - SHS Specifications-Sept_2002
... viii. Protection of controls against lightning induced transients. ix. Night time discharge of the battery due to reverse current through the array. ...
... viii. Protection of controls against lightning induced transients. ix. Night time discharge of the battery due to reverse current through the array. ...
CPS311 Lecture: Introduction to Combinatorial Logic last revised August 5, 2015
... each of which can be in one of two states, commonly called 0 and 1. Further, the output at any time is some function of the inputs. 2. Gates can be realized in many different ways, but we will say little about this. We should note that the generations of computer hardware are largely distinguished b ...
... each of which can be in one of two states, commonly called 0 and 1. Further, the output at any time is some function of the inputs. 2. Gates can be realized in many different ways, but we will say little about this. We should note that the generations of computer hardware are largely distinguished b ...
Errors Due to Shared Leadwires in Parallel Strain Gage Circuits
... power supply for several channels, the associated bridge circuits (each of which contains an active and dummy gage) are effectively in parallel. This arrangement, in itself, need not cause any problems, provided the power supply has sufficient capacity to maintain a constant voltage under varying lo ...
... power supply for several channels, the associated bridge circuits (each of which contains an active and dummy gage) are effectively in parallel. This arrangement, in itself, need not cause any problems, provided the power supply has sufficient capacity to maintain a constant voltage under varying lo ...
TPA0211 数据资料 dataSheet 下载
... In this example, CI is 0.4 µF so one would likely choose a value in the range of 0.47 µF to 1 µF. A further consideration for this capacitor is the leakage path from the input source through the input network (Ci) and the feedback network to the load. This leakage current creates a dc offset voltage ...
... In this example, CI is 0.4 µF so one would likely choose a value in the range of 0.47 µF to 1 µF. A further consideration for this capacitor is the leakage path from the input source through the input network (Ci) and the feedback network to the load. This leakage current creates a dc offset voltage ...
Jauch Lead Free and RoHS matrix
... Long term storage of quartz crystals at hot and humid conditions should be avoided. Preferably, please keep the storage temperature between +10° ~ +45°C (50°F ~ 115°F) and below 60% RH as long as the component is packed and reeled. This will also ensure tape & reel integrity and maintain the peel-st ...
... Long term storage of quartz crystals at hot and humid conditions should be avoided. Preferably, please keep the storage temperature between +10° ~ +45°C (50°F ~ 115°F) and below 60% RH as long as the component is packed and reeled. This will also ensure tape & reel integrity and maintain the peel-st ...
MASW-011021 HMIC Silicon PIN Diode SPDT Switch 6 - 14 GHz
... switching arm and positive DC current to the isolating switching arm. ...
... switching arm and positive DC current to the isolating switching arm. ...
Chapter 8 - UniMAP Portal
... circuits and/or filters. – LC tuned circuits provide initial selectivity. – Filters provide additional selectivity. – By controlling the Q of a resonant circuit, you can set the desired selectivity. – The optimum bandwidth is one that is wide enough to pass the signal and its sidebands but narrow en ...
... circuits and/or filters. – LC tuned circuits provide initial selectivity. – Filters provide additional selectivity. – By controlling the Q of a resonant circuit, you can set the desired selectivity. – The optimum bandwidth is one that is wide enough to pass the signal and its sidebands but narrow en ...
AD736 - Analog Devices
... ±0.3 mV ± 0.3% of reading with sine wave inputs. Furthermore, it maintains high accuracy while measuring a wide range of input waveforms, including variable duty-cycle pulses and triac (phase)-controlled sine waves. The low cost and small size of this converter make it suitable for upgrading the per ...
... ±0.3 mV ± 0.3% of reading with sine wave inputs. Furthermore, it maintains high accuracy while measuring a wide range of input waveforms, including variable duty-cycle pulses and triac (phase)-controlled sine waves. The low cost and small size of this converter make it suitable for upgrading the per ...
Power Minimization in QoS Sensitive Systems , Student Member, IEEE
... and switch to unit and after one CPU unit. In the first case, since task ’s processing demand is 4 and we are able to process 10 at , we will finish , free the memory, and wait for ; then at in the next unit of time, we can finish 3 out of the 7 units of processing demand from ; now is arriving, the ...
... and switch to unit and after one CPU unit. In the first case, since task ’s processing demand is 4 and we are able to process 10 at , we will finish , free the memory, and wait for ; then at in the next unit of time, we can finish 3 out of the 7 units of processing demand from ; now is arriving, the ...
Opto-isolator
In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.